I'm pretty sure I had implantation bleeding a few days ago. I am 8 months PP. I had pretty much the same symptoms this time as I did last time i was pregnant. I started "spotting" 3 or 4 days before my period was supposed to come. My CM has been really stringy and clear. No sign of my period. I have been crampy. I took 2 tests but they both came out negative... I'm just wondering when I should test again?